Key Benefits

• Start your day strong—vitamin B2 supports energy-yielding metabolism and helps reduce tiredness and fatigue.

• Stay sharp and balanced—riboflavin supports your nervous system and helps maintain normal red blood cells.

• Look and feel your best—vitamin B2 helps maintain normal skin, vision, and mucous membranes.

• Everyday protection—riboflavin contributes to the protection of cells from oxidative stress and supports normal iron metabolism.

Thorne’s Riboflavin 5'-Phosphate delivers vitamin B2 in its active, tissue-ready form—designed for easy absorption and daily support. Vitamin B2 (riboflavin) helps your body unlock energy from food, supports your nervous system, and helps keep your skin, vision, and red blood cells in good shape. It also plays a role in protecting your cells from oxidative stress and helps your body use iron effectively. With just one convenient capsule, you can give your body the support it needs to keep up with your busy lifestyle.

What sets Thorne apart is its third-party testing and certification, ensuring that the contents of the package match the label and are free from unsafe levels of contaminants like heavy metals, pesticides, and microorganisms. This commitment to purity and accuracy gives you peace of mind knowing that what you’re taking is safe and effective .

Thorne sets the standard for excellence in the supplement industry. Recommended by over 100 professional sports teams and U.S. National Teams, Thorne offers a curated bundle of clean, science-backed supplements and treats designed complement a healthy lifestyle. With more than 30 years of dedication to quality, Thorne's commitment to purity and potency begins with sustainably sourced ingredients and rigorous testing. Every supplement undergoes four rounds of testing to ensure optimal absorption, safety, and efficacy, making Thorne the trusted choice for both health-conscious individuals and professionals.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

Riboflavin (as Riboflavin 5’-Phosphate Sodium), Hypromellose (Derived from Cellulose) Capsule, Bulking Agent (Microcrystalline Cellulose), Anti-Caking Agent (Silicon Dioxide), Anti-Caking Agent (Calcium Laurate)

Take 1 capsule one to three times daily or as recommended by your health professional.

Additional Information:

Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.

We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.